Racking that climbs past five meters changes the truck conversation: counterweight geometry no longer fits the aisle, and the straddle stacker becomes the racking workhorse.
Scenario challenges
Every meter of lift moves the combined center of gravity; above five meters, truck geometry — not engine power — is the constraint.
Narrow aisles exist to buy density; the truck that works them must not swing a counterweight mass.
Tall racking lengthens every cycle; lift speed and availability decide throughput.
Selection logic
| Decision factor | What to check on site | How this solution is specified |
|---|---|---|
| Racking height vs truck class | Above counterbalance geometry, aisle trucks take over. | ST20 straddle stacker — legs under standard pallets, 2,000 kg, lift 3,000 mm standard to 5,300 mm maximum. |
| Inbound and staging flow | High-bay racking still fills from docks. | EP25 / EP30 counterbalance line stages inbound at 2,500-3,000 kg; walkies (ST15) feed the aisles. |
| Cycle discipline | Tall cycles multiply handling errors. | Tiller-arm emergency reverse on the ST20; operator induction and the daily inspection checklist govern the vertical work. |
| Floor and racking tolerance | Tall steel and heavy pallets concentrate loads. | Floor loading review per the capacity worksheet; racking protection per supplier guidance. |
Recommended models
The high-rack workhorse — 2.0 t straddle stacker, lift to 3,000 mm standard, 5,300 mm max.
\nInbound staging at 3,000 kg @ 500 mm with opportunity charging.
\nSend your racking heights, aisle widths and pallet profile — engineering responds within 12 hours on average.
Beverage distribution, retail DCs, 3PL and paper warehousing — the fleet-scale environments.
The warehousing solution shows the dock-to-aisle split that high-rack sites converge on.